Brönsted Acid of Keggin Type Polyoxometalate Catalyzed Pinacol Rearrangement
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چکیده
منابع مشابه
Aza-pinacol rearrangement: acid-catalyzed rearrangement of aziridines to imines.
A series of di-, tri-, and tetra-substituted N-tosylaziridines [N-(toluene-p-sulfonyl)aziridines] 1, prepared by aziridination of the corresponding alkenes with N-[(tolyl-p-sulfonyl)imino]phenyliodinane (TsN = IPh), was found to undergo a BF3-catalyzed rearrangement (aza-pinacol rearrangement) under mild conditions to give the corresponding N-tosylimines 2 generally in satisfactory yields.
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The kinetics and mechanism of ether and alkanol cleavage reactions on Brønsted acid catalysts based on polyoxometalate (POM) clusters are described in terms of the identity and dynamics of elementary steps and the stability of the transition states involved. Measured rates and theoretical calculations show that the energies of cationic transition states and intermediates depend on the propertie...
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ژورنال
عنوان ژورنال: Bulletin of Chemical Reaction Engineering & Catalysis
سال: 2014
ISSN: 1978-2993
DOI: 10.9767/bcrec.9.2.6074.136-141